| BALITAC | ⊕ 1956 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | MIT Compiler for 650 |
| INTERCOM 101 | ⊕ 1956 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Low-level Autocoders | ⊕ United States | FP autocode |
| NYU/OMNIFAX | ⊕ 1956 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Low-level Autocoders | ⊕ United States | Hybrid compiler for UNIVAC II |
| OMNICODE | ⊕ 1956 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | Autocoder for 650 |
| OMNIFAX | ⊕ 1956 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | Compiler for Univac I |
| SMAC | ⊕ 1956 | ↓ ↑ ⊕ Multi-purpose | ⊕ Low-level Autocoders | ⊕ United States | JOHNNIAC diagnostic compiler |
| SOHIO | ⊕ 1956 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | SOHIO autocode for 750 |
| UGLIAC | ⊕ 1956 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | United Gas autocode |
| VIB | ⊕ 1956 | ↓ ↑ ⊕ Experimental and other | ⊕ Low-level Autocoders | ⊕ United States | Early language for General Motors |